Multidimensional monitoring of anaerobic/aerobic azo dye based wastewater treatments by hyphenated UPLC-ICP-MS/ESI-Q-TOF-MS techniques

Autor: Axel G. Griesbeck, Thorsten Reemtsma, Benjamin Frindt, Astrid Rehorek, Jürgen Mattusch
Rok vydání: 2016
Předmět:
0301 basic medicine
Predicted reaction mechanisms and toxicity
Reaction mechanism
Health
Toxicology and Mutagenesis
Online toxicity measurements
Sulfuric Acid Esters
Wastewater
010501 environmental sciences
Biological azo dye treatment
Waste Disposal
Fluid
01 natural sciences
High-performance liquid chromatography
03 medical and health sciences
Hydrolysis
Environmental Chemistry
Aliivibrio fischeri
Recent Advances in Chemistry and the Environment
Coloring Agents
Effluent
0105 earth and related environmental sciences
Chromatography
biology
Chemistry
Decolorization
General Medicine
Biodegradation
biology.organism_classification
ICP-MS/ESI-Q-TOF coupling
Pollution
Biodegradation
Environmental
030104 developmental biology
Transformation products
DOC removal
Sewage treatment
Azo Compounds
Water Pollutants
Chemical
Zdroj: Environmental Science and Pollution Research International
ISSN: 1614-7499
0944-1344
Popis: Sulfonated reactive azo dyes, such as Reactive Orange 107, are extensively used in textile industries. Conventional wastewater treatment systems are incapable of degrading and decolorizing reactive azo dyes completely from effluents, because of their stability and resistance to aerobic biodegradation. However, reactive azo dyes are degradable under anaerobic conditions by releasing toxic aromatic amines. To clarify reaction mechanisms and the present toxicity, the hydrolyzed Reactive Orange 107 was treated in anaerobic-aerobic two-step batch experiments. Sulfonated transformation products were identified employing coupled ICP-MS and Q-TOF-MS measurements. Suspected screening lists were generated using the EAWAG-BBD. The toxicity of the reactor content was determined utilizing online measurements of the inhibition of Vibrio fischeri. The OCHEM web platform for environmental modeling was instrumental in the estimations of the environmental impact of generated transformation products.
Databáze: OpenAIRE
Externí odkaz: